Question

Test each statement below to see if it is reversible. If so, write it as a true biconditional. If not, write not reversible

1.                   Complementary angles are two angles with measures that have a sum of 90.

2. A rectangle is a four-sided figure with at least one right angle.

Answer 1

Statement: Complementary angles are two angles with measures that have a sum of 90.
Reverse: Two angles with measures that have a sum of 90 are complementary angles.

Here the reverse is true, therefore, the statement is true biconditional.

Statement: A rectangle is a four-sided figure with at least one right angle.
Reverse: A four sided figure with at least one right angle is a rectangle.

Here, the reverse is not true, therefore, the statement is not reversible.